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120 resultados encontrados.

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Copper and aluminum electric corrosion investigation and intermetallics disappearance in Cu-Al system analysis
Artículo
Acceso abierto Artículo DOAJ
M. V. Yarmolenko · Vasyl Stefanyk Carpathian National University · 2020 · ISSN 1729-4428
Copper and aluminum electric corrosion is investigated experimentally. It is founded that copper corrosion is higher than aluminum corrosion. Intermetallics disappearance rate in Cu-Al system is analyzing theoretically. ...
LCC TENDOlBoeXNpY3M~Idioma eng
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Open Access
Implementing Learner Autonomy in English as a Foreign Language Classroom Through a Flipped Classroom Pedagogical Approach
Artículo
Acceso abierto Artículo DOAJ
Ihor Romanyshyn et al · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 2311-0155
This study is a small-scale action research on the problem of using the Flipped Classroom pedagogical approach to enhance learner autonomy in the target group of high school students in an EFL classroom. The main stages ...
LCC TENDOkVkdWNhdGlvbg~~; TENDOkVjb25vbWljcyBhcyBhIHNjaWVuY2U~Idioma eng
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Study of the influence concentration difference of copper in properties of cerium nanopowder
Artículo
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Areej Adnan Hateef et al · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 1729-4428
Various concentrations (3%, 6%, 9%) of copper added to pure cerium oxide nanopowder were prepared by the sol-gel method. The prepared samples were examined using different techniques to understand their surface compositi...
LCC TENDOlBoeXNpY3M~Idioma eng
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Synthesis, Electrical and Magnetic Properties of Composites Copper Iodide/Magnetite-Polychlorotrifluoroethylene
Artículo
Acceso abierto Artículo DOAJ
R. V. Mazurenko et al · Vasyl Stefanyk Carpathian National University · 2018 · ISSN 1729-4428
The structural, magnetic and electrophysical properties of composites based on nanosized magnetite chemically modified of copper iodide and polychlortrifluoroethylene have been studied at temperatures 298 – 450 K and C...
LCC TENDOlBoeXNpY3M~Idioma eng
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Open Access
The mechanisms of nickel-iron spinel phase nucleation in aquous solutions: crystal quasichemical approach
Artículo
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V. Bojchuk et al · Vasyl Stefanyk Carpathian National University · 2019 · ISSN 1729-4428
The phenomenological model of nikel-iron spinel nucleation with spinel structure based on the partial charge theory and analysis of hydrolysis and polycondensation processes at the interaction of Fe3+-, Fe2+- and Ni2+- h...
LCC TENDOlBoeXNpY3M~Idioma eng
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Field Emission from the Perspective Cathodes on the Nanostructured SiC base: a New Approach for the Field Enhancement Coefficient Consideration
Artículo
Acceso abierto Artículo DOAJ
А.М. Gariachko et al · Vasyl Stefanyk Carpathian National University · 2022 · ISSN 1729-4428
A new comprehensive theory for the field emission from the nanostructured semiconducting SiC was built with allowance for specially worked out analytical model of the field enhancement coefficient for the case of compara...
LCC TENDOlBoeXNpY3M~Idioma eng
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Flexural Bending and Fatigue Analysis of Functionally Graded Viscoelastic Materials: Experimental and Numerical Approaches
Artículo
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E.K. Njim et al · Vasyl Stefanyk Carpathian National University · 2023 · ISSN 1729-4428
This work synthesized a thermoplastic polymer with varying densities along one direction using additive manufacturing technology to study the dynamic and static characteristics of functionally graded viscoelastic materia...
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Open Access
Russia’s Attitude Towards European Integration: Changing Approaches from Perception to Tough Opposition
Artículo
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Vira Shaturma · Vasyl Stefanyk Carpathian National University · 2017 · ISSN 2311-0155
In the article are highlighted the results of theoretical analysis of Russia’s attitude towards European integration. The analysis unveiled the historical, cognitive and discoursive sources of Russia’s unwillingness ...
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Structural and morphological properties of titanium dioxide nanoparticles dopped by Boron atoms
Artículo
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Ivan Mironyuk et al · Vasyl Stefanyk Carpathian National University · 2022 · ISSN 1729-4428
The phase composition and morphology of boron-containing TiO2 nanoparticles obtained by the sol-gel method were investigated. The solution of titanium aqua complex [Ti (OH2)6]3+‧3Cl- was used as a precursor. Borate aci...
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Analysis of the Structural, Morphological, and Elastic Properties of Nanosized CuFe2O4 Spinel Synthesized via Sol-Gel Self-Combustion Method
Artículo
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Julia Mazurenko et al · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 1729-4428
Nanosized CuFe2O4 ferrite was synthesized through the sol-gel self-combustion technique, using iron and copper nitrates with citric acid as fuel. The synthesized ferrite was subsequently analyzed using X-ray diffraction ...
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Concentration effects in multicomponent metallic solid solutions
Artículo
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S.I. Protsenko et al · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 1729-4428
In the equiatomic approximation, the dependence of the lattice FCC parameter and the Debye temperature from the atomic fate x of the doping element, which is alternately represented by all elements of a multicomponent so...
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Coping with Forest and Land Fire Regulatory Challenges in Indonesia: an Assessment to the Regulatory Enforcement
Artículo
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Isna Fatimah · Vasyl Stefanyk Carpathian National University · 2018 · ISSN 2311-0155
The uncontrolled expansion of plantation activities within peatland areas is one of the major trigger causing forest and/or land fire (Fire) in Indonesia. To deal with such problems including other influencing variables ...
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Inclusive Education in Schools: Organizational-Pedagogical Aspects of the Problem
Artículo
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Nataliia Matveieva · Vasyl Stefanyk Carpathian National University · 2018 · ISSN 2311-0155
The article emphasizes that the urgent need today is to create the necessary conditions for meeting the needs of each child, regardless of its capabilities and other factors in realizing its potential, bringing benefits ...
LCC TENDOkVkdWNhdGlvbg~~; TENDOkVjb25vbWljcyBhcyBhIHNjaWVuY2U~Idioma eng
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Material complementario
Isochronous and isothermal annealing of defects
Artículo
Acceso abierto Artículo DOAJ
Ya.P. Saliy · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 1729-4428
The regularities of isothermal and isochronous discrete and continuous annealed material at a constant rate are considered on the example of monomolecular reaction and bimolecular recombination of Frenkel pairs. For isoc...
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Advantages of Direct Laser Writing for Enhancing the Resolution of Diffractive Optical Element Fabrication Processes
Artículo
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V.V. Petrov et al · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 1729-4428
A technology for direct laser writing of code sequences on modulation disks has been developed and implemented, ensuring high accuracy and reliability in the process of forming structural elements. The main advantages of...
LCC TENDOlBoeXNpY3M~Idioma eng
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Material complementario
Analysis X-ray diffractograms from near-surface layers of monocrystals: development of models, algorithms and software
Artículo
Acceso abierto Artículo DOAJ
I.P. Yaremiy et al · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 1729-4428
An algorithm for analyzing double-crystal rocking curves from the near-surface layers of monocrystals has been proposed, and corresponding software has been developed. It is taken into account that to obtain correct resu...
LCC TENDOlBoeXNpY3M~Idioma eng
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Open Access
Average decayed dynamics of one-step transformation process with randomly varying return transition rate
Artículo
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O.L. Kapitanchuk et al · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 1729-4428
The problem of stochastic averaging of the decayed dynamics of the output state population of a one-step transformation process with constant deterministic forward transition rate and randomly varying return transition r...
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Building an Organizational and Economic Mechanism for the Development of Woodworking Enterprises
Artículo
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Oksana Agres et al · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 2311-0155
The article substantiates the fact that several approaches should be considered when building an organizational and economic mechanism for the development of woodworking enterprises, in particular: process-based, innovat...
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Institucional
Crystal growth and characterization of Benzimidazolium salicylate single crystal for nonlinear optical studies and antibacterial activity
Artículo
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S. Sakthy Priya et al · Vasyl Stefanyk Carpathian National University · 2020 · ISSN 1729-4428
Organic non-linear optical Benzimidazolium salicylate (BISA) single crystals have been harvested from methanol solution by slow evaporation method. The grown crystals belong to the monoclinic crystal system with space gr...
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Current Experience in the Use of Digital Educational Resources: Future Primary School Teachers’ Training
Artículo
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Oleksandr Blyznyuk · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 2311-0155
The article presents theoretical insight into thorough analyses of the outstanding experience and best practices in using digital educational resources by educators. We attempt to integrate these findings into training s...
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Current Problems of Teaching Philosophical Disciplines in Educational Institutions of Slovak Republic
Artículo
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Marián Ambrozy · Vasyl Stefanyk Carpathian National University · 2021 · ISSN 2311-0155
The paper is a brief mapping of the situation in the field of didactics of philosophy in the Slovak Republic. We observe that, despite almost three decades of separation of official philosophy from the dominance of Marxi...
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Distribution of excess charge carriers in bilateral macroporous silicon with the same thickness of porous layers
Artículo
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V.F. Onyshchenko · Vasyl Stefanyk Carpathian National University · 2022 · ISSN 1729-4428
In this work, to calculate the distribution of the excess minority carrier concentration in bilateral macroporous silicon, the solution of the diffusion equation for stationary conditions is used, which is written for a ...
LCC TENDOlBoeXNpY3M~Idioma eng
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GEANT4 Study of Secondary Electron Emission in ZnO Nanorod Arrays under 10-100 MeV Oxygen Ion Irradiation
Artículo
Acceso abierto Artículo DOAJ
V. Kotsyubynsky et al · Vasyl Stefanyk Carpathian National University · 2025 · ISSN 1729-4428
Computational study of secondary electron emission (SEE) from ZnO nanorod arrays deposited on Au/Si₃N₄ substrates under irradiation with 16O ions in the 10–100 MeV energy range was performed. Using a combination of...
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Green synthesis of silver nanoparticles from whole plant extract analyzed for characterization, antioxidant, and antibacterial properties
Artículo
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Abhimanyu P. Pawar et al · Vasyl Stefanyk Carpathian National University · 2023 · ISSN 1729-4428
In this analysis, A green synthesis method utilizing a plant extract derived from Rumex nepalensis (spreng) was employed to synthesize silver nanoparticles. The synthesized nanoparticles were thoroughly characterized for...
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